diff --git a/app/src/main/cpp/CMakeLists.txt b/app/src/main/cpp/CMakeLists.txt
index 4a623899..17da6f17 100644
--- a/app/src/main/cpp/CMakeLists.txt
+++ b/app/src/main/cpp/CMakeLists.txt
@@ -33,6 +33,7 @@ add_definitions(-DUSING_NRSEC)
 # add_definitions(-DUSING_DOWSE)
 # OUTPUT_CAMERA_DBG_INFO: 照片上打印CARERA相关信息
 add_definitions(-DOUTPUT_CAMERA_DBG_INFO)
+add_definitions(-DALIGN_HB_TIMER_TO_PHOTO)
 
 # set(OpenCV_DIR D:/Workspace/deps/OpenCV-android-sdk/sdk/native/jni/)
 set(OPENCV_EXTRA_MODULES_PATH D:/Workspace/Github/opencv_contrib/modules)
diff --git a/app/src/main/cpp/PhoneDevice.cpp b/app/src/main/cpp/PhoneDevice.cpp
index 0e1c4f9b..f4f2bac8 100644
--- a/app/src/main/cpp/PhoneDevice.cpp
+++ b/app/src/main/cpp/PhoneDevice.cpp
@@ -189,7 +189,7 @@ CPhoneDevice::CPhoneDevice(JavaVM* vm, jobject service, const std::string& appPa
     m_javaService = env->NewGlobalRef(service);
 
     jclass classService = env->GetObjectClass(m_javaService);
-    mRegisterHeartbeatMid = env->GetMethodID(classService, "registerHeartbeatTimer", "(I)V");
+    mRegisterHeartbeatMid = env->GetMethodID(classService, "registerHeartbeatTimer", "(IJ)V");
     mUpdateTimeMid = env->GetMethodID(classService, "updateTime", "(J)Z");
     mUpdateCaptureScheduleMid = env->GetMethodID(classService, "updateCaptureSchedule", "(J)Z");
     mStartRecordingMid = env->GetMethodID(classService, "startRecording", "(IJIIIIILjava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V");
@@ -850,7 +850,7 @@ bool CPhoneDevice::ReleaseWakelock(unsigned long wakelock)
     return true;
 }
 
-IDevice::timer_uid_t CPhoneDevice::RegisterHeartbeat(unsigned int timerType, unsigned int timeout)
+IDevice::timer_uid_t CPhoneDevice::RegisterHeartbeat(unsigned int timerType, unsigned int timeout, time_t tsForNextPhoto)
 {
     mHeartbeatStartTime = time(NULL);
     mHeartbeatDuration = timeout;
@@ -866,7 +866,11 @@ IDevice::timer_uid_t CPhoneDevice::RegisterHeartbeat(unsigned int timerType, uns
         ALOGE("Failed to get JNI Env");
         return 0;
     }
-    env->CallVoidMethod(m_javaService, mRegisterHeartbeatMid, (jint)timeout);
+#ifdef ALIGN_HB_TIMER_TO_PHOTO
+    env->CallVoidMethod(m_javaService, mRegisterHeartbeatMid, (jint)timeout, (jlong)tsForNextPhoto);
+#else
+    env->CallVoidMethod(m_javaService, mRegisterHeartbeatMid, (jint)timeout, 0);
+#endif
     if (didAttachThread)
     {
         m_vm->DetachCurrentThread();
@@ -1232,8 +1236,6 @@ bool CPhoneDevice::OnImageReady(cv::Mat& mat)
         }
 #endif
 
-
-
         textSize = ft2->getTextSize(it->text, fontSize, thickness, &baseline);
         XYLOG(XYLOG_SEVERITY_DEBUG, "%s font Size=%d height: %d baseline=%d", it->text.c_str(), fontSize, textSize.height, baseline);
 
diff --git a/app/src/main/cpp/PhoneDevice.h b/app/src/main/cpp/PhoneDevice.h
index 8e32b09c..b3b550e5 100644
--- a/app/src/main/cpp/PhoneDevice.h
+++ b/app/src/main/cpp/PhoneDevice.h
@@ -189,7 +189,7 @@ public:
 	virtual bool EnableGPS(bool enabled);
     virtual float QueryBattaryVoltage(int timesForAvg, bool* isCharging);
 	virtual bool RequestPosition();
-    virtual timer_uid_t RegisterHeartbeat(unsigned int timerType, unsigned int timeout);
+    virtual timer_uid_t RegisterHeartbeat(unsigned int timerType, unsigned int timeout, time_t tsForNextPhoto);
 	virtual bool TakePhoto(const IDevice::PHOTO_INFO& photoInfo, const vector<OSD_INFO>& osds, const std::string& path);
 	virtual bool CloseCamera();
     virtual timer_uid_t RegisterTimer(unsigned int timerType, unsigned int timeout, void* data, unsigned long times = 0);
diff --git a/app/src/main/java/com/xypower/mpapp/MicroPhotoService.java b/app/src/main/java/com/xypower/mpapp/MicroPhotoService.java
index a951f22e..8685eb9b 100644
--- a/app/src/main/java/com/xypower/mpapp/MicroPhotoService.java
+++ b/app/src/main/java/com/xypower/mpapp/MicroPhotoService.java
@@ -381,7 +381,7 @@ public class MicroPhotoService extends Service {
     }
 
     // Will be called fron native
-    private void registerHeartbeatTimer(int duration) {
+    private void registerHeartbeatTimer(int duration, long nextPhotoTime) {
         int orgHeartbeatDuration = mHeartbeatDuration;
         mHeartbeatDuration = duration;
         if (orgHeartbeatDuration == 0) {